Grade 8 Hex Flange Screw (Frame Bolt), Black Phosphate & Oil 5/8"-11 x 1-1/2", 2" Length

This bolt is identifiable by the ridge or surrounding the bolt head, this built-in washer under the head of the Bolt acts to distribute the clamping load over a greater area. A flange bolt is designed to provide the same holding power as a washer. Grade 8 has a greater tensile strength than Grade 5.

Features:

• Hex Flange Screw with Indented Head
• Black Phosphate and Oil Plating